Our bestselling shock oil. Twenty weights from 50 cSt up to 1000 cSt, in 50 cSt steps. 100% silicone base, heat-stable, seal-safe.
The annoying thing about a lot of generic shock oils is that batch-to-batch variance is real. The 400 cSt you bought last month might read more like 380 cSt this month, and setup work doesn't really survive that.
Rhodex Silicone Performance Fluid is made to spec, batch after batch. Pure silicone — no PAO, no mineral oil thinners, no thickener additives. What's on the label is what's in the bottle, and what's in the next bottle.
That's the point. Repeatable setup work. Notes from last race still apply when you fill the shocks for the next one. The bottle does what it says, every time.
From 50 cSt cold-start rebound oil to 1000 cSt heavy damping for high-grip carpet — find your exact specification.
Cold-weather tuning, light rebound damping, and ultra-fast shock response. The lightest in the range.
Light damping for fast tracks and small-scale RC. Perfect blending base for custom setups.
Light-medium damping. Common viscosity for indoor carpet and high-grip surface tuning.
Light damping fluid. Popular for touring cars on smooth tracks and balanced suspension setups.
Mid-light damping. Versatile choice for off-road buggies and smaller RC platforms.
Standard medium-light damping. Excellent all-around viscosity for mid-grip surfaces.
Medium damping. The "sweet spot" viscosity used by countless racers as their default setup oil.
Medium damping. Reliable middle-range viscosity for off-road racing and bumpy tracks.
Medium-firm damping. Popular for short-course trucks and aggressive off-road driving styles.
Firm damping. Standard choice for 1/8 buggies and trucks on rough or jumpy tracks.
Firm damping. Higher control for technical tracks with sharp transitions and jumps.
Firm-heavy damping. For aggressive off-road and large-scale RC platforms requiring stiff control.
Heavy damping. For high-grip surfaces requiring tight body roll control.
Heavy damping for monster trucks, large-scale RC, and high-load applications.
Very heavy damping. Specialty viscosity for crawler shocks and ultra-controlled compression.
Very heavy damping. For extreme high-grip carpet and ultra-stiff rebound control.
Extra-heavy damping. Specialist viscosity for niche applications and extreme suspension setups.
Extra-heavy damping. For high-load racing, controlled compression, and stiff suspension behavior.
Ultra-heavy damping. Specialist viscosity for unique suspension setups and high-control applications.
Maximum damping. Top of the range for the heaviest setups and most demanding compression control needs.
Every bottle in the Silicone Performance Fluid line uses the same base chemistry. The only thing that changes is the viscosity.
Pure polydimethylsiloxane. No PAO blends, no mineral oil thinners, no thickener additives. The viscosity behaves the way silicone is supposed to.
Stabilised against thermal thinning. The 400 cSt at the start of the run is close to 400 cSt at the end.
Won't swell or attack standard shock O-rings and seals. Compatible with all the usual shock body materials.
The range covers 50, 100, 150… all the way to 1000 cSt. Step up or down to the next bottle — no need to blend two together.
Squeeze bottle with a fine dropper tip — clean to dispense, easy to bleed.
Formulated and bottled in Britain. End-to-end QC.